Racing VW Hi Rev Dual Valve Springs Set vw oil filter The sandwich adapter fits between

The sandwich adapter fits between the stock filter mount and filter

finned pulley cover

Compensates for zero deck height when heads have been machined or in stroker setups

5/92mm Bore

For sue with external oil cooler

Racing VW Hi Rev Dual Valve Springs Set vw oil filter The sandwich adapter fits betweenInsure against valve spring fatigue and breakage and stop that valve float with the best valve springs on the market. Hand checked and magnafluxed for top quality. These Dual Valve spring sets feature 2 high rev springs per valve. The outer spring is 1. 246" diameter using . 153" wire diameter. The inner spring features . 910" diameter using . 113" wire diameter. Together they will lift . 630" and more with coil bind at . 800". Valve guide boss must